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近年来,由于环境污染的影响,源水水质不断下降,自来水中微量有毒有害物质引起了人们的关注,特别是三卤甲烷的致癌性引起了人们的不安.去除这些有毒有害物质可以采用物理的、化学的和生物的方法.生物处理有许多方法,生物流化床即是其中的一种.本课题是国家“八五”课题之一,与宁波市自来水公司合作研究,在宁波梅林水厂采用生物流化床法对姚江水进行预处理研究.经实验研究,生物流化床能够有效地去除氨氮和亚硝酸氮,对有机物、色度、浊度、铁均有一定的去
In recent years, due to the impact of environmental pollution, the quality of source water has been declining. Traces of toxic and harmful substances in tap water have attracted people’s attention. In particular, the carcinogenicity of trihalomethanes has caused people’s uneasiness. The removal of these toxic and harmful substances can be used physically. , chemical and biological methods. There are many methods of biological treatment, biological fluidized bed is one of them. This subject is one of the national “8th Five Year Plan” issues, and is cooperating with Ningbo Water Supply Company to research in Ningbo Meilin Water Factory. The biological fluidized bed method was used to pre-treat the Yao River water. After experimental research, the biological fluidized bed can effectively remove ammonia nitrogen and nitrous nitrogen, and it has certain effects on organic matter, color, turbidity, and iron.